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I read the proof of uncertainty principle in Nielsen and Chuang. There is something I don't understand. They use operators $A$ and $B$ respectively as $P -...
Asked on 12/20/2020 by Paul Bonnot
1 answerThis might be a stupid question, but why is the normalization of the Gell-Mann matrices (basis of the $mathrm{su}(3)$ Lie algebra) chosen to be$$mathrm{trace}(lambda_ilambda_j)=2delta_{ij}$$instead of just...
Asked on 12/20/2020
1 answerThis is a follow up question to the question I asked yesterday: Problem understanding basic sail mechanics I am focusing purely on the Newtonian aspect of...
Asked on 12/20/2020 by T. Kiley
5 answerIs the $Delta x=v_0t+frac{1}{2}at^2$ kinematic equation an approximation? I'm not asking with reference to relativity, but rather is it still an approximation within Newtonian Physics? I remember deriving this...
Asked on 12/20/2020
2 answerThis follows a comment to split to a 2nd question Superalgebra and BRST supersymmetry 1: odd vs even It is said that most of theories, the...
Asked on 12/20/2020
1 answerI am curious about this problem due to an observation last week. A standing fan I had has its wires exposed, then it short-circuited since the neutral wire was touching...
Asked on 12/20/2020 by hyacinth chan
3 answerI was exploring cases of Gauss's Law application on different surfaces in the Professor Moyses Nussenzveig book (Basic Physics Course, Vol.III) and I'm having a hard time understanding completely a...
Asked on 12/20/2020 by July H.
0 answerI am reading the book by Gitman et al. 'self-adjoint extensions in quantum mechanics'. In the book, they give a precise definition of the domain of the hamiltonian of...
Asked on 12/20/2020 by Jiang-min Zhang
1 answerPrinciple of minimum energy in thermodynamic states ${left(frac{partial U}{partial V}right)_S} = 0$ at equilibrium $U(S,V)$ at fixed entropy is extremum with respect to the unconstrained variable ...
Asked on 12/20/2020
1 answerThere are different types of masses like inertial mass, passive gravitational mass, active gravitational mass, relative mass, et cetera. does Are there different types of gravitational forces that is exerted...
Asked on 12/20/2020 by Ananya Goel
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